You can add page numbers to your PowerPoint slideshow through the "Slide Master" page, which lets you edit your entire slideshow at once.

How to Get Roman Numerals on PowerPoint. "Presentations largely stand or fall on the quality, relevance, and integrity of the content," says Edward Tufte, professor emeritus at Yale University.

How to Insert a Reference in PowerPoint 2007. When you need to add helpful references to slides in your business presentations, you can use the same referencing system that the Royal Society of ...